The crab of thumbnailphoto: NASA / ESA
An international team of scientists has documented anomalous photons with the highest energy in the history of observations. According to astronomers, a particle of light came from the crab nebula in the composition of cosmic rays emitted by supernova remnants. About it reported in a press release on Phys.org.
The researchers watched the showers of particles coming from the upper layers of Earth’s atmosphere and the resulting collision of cosmic rays with atoms in the earth’s gases. There were 24 such shower initiated by photons with energy above 100 teraelectronvolt (trillion electron volts, TeV). According to calculations, one of the photons had to have energy of 450 TeV.
Observations were conducted at the Observatory Gibma Collaboration of the Tibet Air Shower on the Tibetan plateau. It includes 600 particle detectors placed on an area of 65 thousand square meters. Scientists have excluded from the analyzed the event data check of muons produced in the collision with the atmosphere of high-energy protons and atomic nuclei.
The crab nebula is the remnant of a supernova that erupted in 1054 ad. This property is situated in the sleeve of Perseus, about 6500 light years from us.
Video, photo All from Russia.